Answer:
Red blood cells and the heart causes response to stimuli
Yes i believe it is possible. Complete proteins are proteins with all the indispensable amino acids present in proper proportions; for example in foods like eggs, meat, fish, milk. Incomplete proteins on the other hand are food proteins that contain a limiting amount of one or more indispensable amino acids needed for growth; for example corn tortillas are lacking in lysine. It is possible to make a complete protein by combining together two incomplete protein foods in the same meal.
Explanation:
I think the answer is contraceptive pills but not sure
Answer:
c.
an increase in ecosystem stability
Explanation:
D) The AV valves are supported by chordae tendineae so that they do not blow back up into the atria during ventricular contraction.